diff options
| author | Reza Arbab <arbab@linux.vnet.ibm.com> | 2017-01-25 09:54:33 -0600 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-01-30 15:35:13 +1100 |
| commit | a0615a16f7d0ceb5804d295203c302d496d8ee91 (patch) | |
| tree | 62176ad23e9f7d1a679c45db2f43ac23264b03b5 | |
| parent | b5fa0f7f88edcde37df1807fdf9ff10ec787a60e (diff) | |
| download | linux-a0615a16f7d0ceb5804d295203c302d496d8ee91.tar.bz2 | |
powerpc/mm: Use the correct pointer when setting a 2MB pte
When setting a 2MB pte, radix__map_kernel_page() is using the address
ptep = (pte_t *)pudp;
Fix this conversion to use pmdp instead. Use pmdp_ptep() to do this
instead of casting the pointer.
Fixes: 2bfd65e45e87 ("powerpc/mm/radix: Add radix callbacks for early init routines")
Cc: stable@vger.kernel.org # v4.7+
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/mm/pgtable-radix.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c index cfa53ccc8baf..34f1a0dbc898 100644 --- a/arch/powerpc/mm/pgtable-radix.c +++ b/arch/powerpc/mm/pgtable-radix.c @@ -65,7 +65,7 @@ int radix__map_kernel_page(unsigned long ea, unsigned long pa, if (!pmdp) return -ENOMEM; if (map_page_size == PMD_SIZE) { - ptep = (pte_t *)pudp; + ptep = pmdp_ptep(pmdp); goto set_the_pte; } ptep = pte_alloc_kernel(pmdp, ea); @@ -90,7 +90,7 @@ int radix__map_kernel_page(unsigned long ea, unsigned long pa, } pmdp = pmd_offset(pudp, ea); if (map_page_size == PMD_SIZE) { - ptep = (pte_t *)pudp; + ptep = pmdp_ptep(pmdp); goto set_the_pte; } if (!pmd_present(*pmdp)) { |